Flight OddsBWI → STL Southwest Airlines
Southwest Airlines · Baltimore, MD to St. Louis, MO · 1,270 flights, 2025-07-01 to 2026-06-30 · aggregated across 79 flight numbers
On-time arrival
83%
Median delay
-8 min
90th percentile
+31 min
Cancellation rate
1%
How on-time is Southwest Airlines from BWI to STL?
Across every Southwest Airlines flight number on BWI → STL (1,270 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +31 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,043 | 83% |
| 16-30 min | 85 | 7% |
| 31-60 min | 51 | 4% |
| 61-120 min | 42 | 3% |
| 2+ hrs | 33 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 123 | 73% | +24 min |
| 2025-08 | 127 | 86% | +3 min |
| 2025-09 | 117 | 91% | -5 min |
| 2025-10 | 106 | 82% | +1 min |
| 2025-11 | 106 | 89% | -5 min |
| 2025-12 | 99 | 77% | +9 min |
| 2026-01 | 69 | 86% | -3 min |
| 2026-02 | 73 | 92% | -8 min |
| 2026-03 | 107 | 79% | +5 min |
| 2026-04 | 106 | 90% | -4 min |
| 2026-05 | 111 | 81% | +2 min |
| 2026-06 | 110 | 77% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 188 | 84% |
| Tue | 169 | 88% |
| Wed | 162 | 85% |
| Thu | 188 | 82% |
| Fri | 189 | 86% |
| Sat | 166 | 80% |
| Sun | 192 | 79% |
WN flight numbers on BWI → STL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…